Dell 4220 Projector RS232 Command Line Interface Guide
Summary
The Dell 4220/4320 RS232 Protocol Document defines the serial communication protocol for controlling Dell projectors. It specifies pin assignments for RS232 and Mini DIN-6 connectors, communication settings (19200 bps, 8 data bits, no parity), and command syntax structure including header, address code, payload size, CRC16, message ID, and command codes. The document details control commands for power management, input source selection, and system status queries, along with projector response message formats. Target users are AV integrators, system programmers, and IT professionals who need to integrate Dell projectors into automated control systems.
Page 1 Text Content
Dell™ 4220/4320 RS232 Protocol Document RS232 Projector Pin Assignment (Facing Projector)
RS232 Serial Communication Cable Pin Assignment (Facing Cable)
Pin Assignments RS232 PIN DESCRIPTION MINI DIN-6
2 TXD 5 3 RXD 3
5 GROUND 1, 2
7 Not Used 6 8 Not Used 4
Note 1: The RS232 cable is not provided by Dell.
RS232 Protocol Communication Settings
Connection Settings Value Baud Rate 19200 bps Data Bits 8 bits Parity None Stop Bits 1 bit Flow control None
Command Types To display the OSD menu and adjust the settings.
Page Summary Contents For Dell 4220 Projector RS232 Command Line Interface Guide
Manual Details
| Brand | Dell |
|---|---|
| Pages | 6 |
| File Size | 199.64 KB |
| Published | June 27, 2026 |
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Frequently Asked Questions
What is the data rate for RS232 communication?
The required Baud Rate is 19200 bps, with 8 Data Bits, No Parity, and 1 Stop Bit.
How do I send a 'Power On' command to the projector?
Use the following hexadecimal code: 0xbe, 0xef, 0x10, 0x05, 0x00, 0xc6, 0xff, 0x11, 0x11, 0x01, 0x00, 0x01.
What does the projector response code '0x02' indicate?
A response value of 0x02 indicates an Error Command, which includes CRC errors or unknown commands.
How can I check the total lamp hours remaining?
Send the Lamp-Hours command (Address Code: 0x7fda) to retrieve the remaining time in hex format via a four-byte response.